Datasheet

108
32117D–AVR-01/12
AT32UC3C
8.6.12 3.3V BOD Control Register
Name: BOD33
Access Type: Read/Write
Offset: 0x0034
Reset Value: 0x00000000
• SFV: Store Final Value
0: The register is read/write.
1: The register is read-only, to protect against further accidental writes.
• FCD: Flash Calibration Done
Set to 1 when the CTRL field has been updated by the Flash fuses after a reset.
0: The flash calibration will be redone after any reset.
1: The flash calibration will not be redone after a BOD33 reset.
• CTRL: BOD33 Control
• HYST: BOD33 Hysteresis
0: No hysteresis.
1: Hysteresis on.
31 30 29 28 27 26 25 24
SFV-------
23 22 21 20 19 18 17 16
-------FCD
15 14 13 12 11 10 9 8
------ CTRL
76543210
- HYST LEVEL
Table 8-8. Operation mode for BOD33
CTRL Description
0x0 BOD33 is off
0x1 BOD33 is enabled and can reset the chip
0x2
BOD33 is enabled, but cannot reset the chip. Only interrupt will be sent to interrupt controller, if enabled in
the IMR register.
0x3 Reserved